Description
WebExtensions bundled with embedded experiments were not correctly checked for proper authorization. This allowed a malicious WebExtension to gain full browser permissions. This vulnerability affects Firefox ESR < 60.1 and Firefox < 61.
Published: 2018-10-18
Score: 9.8 Critical
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

Advisories
Source ID Title
EUVD EUVD EUVD-2018-4343 WebExtensions bundled with embedded experiments were not correctly checked for proper authorization. This allowed a malicious WebExtension to gain full browser permissions. This vulnerability affects Firefox ESR < 60.1 and Firefox < 61.
Ubuntu USN Ubuntu USN USN-3705-1 Firefox vulnerabilities
History

Tue, 25 Nov 2025 18:00:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*
Vendors & Products Mozilla firefox Esr

Subscriptions

Canonical Ubuntu Linux
Mozilla Firefox
cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published:

Updated: 2024-08-05T08:31:00.394Z

Reserved: 2018-06-14T00:00:00.000Z

Link: CVE-2018-12369

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2018-10-18T13:29:03.663

Modified: 2025-11-25T17:50:16.803

Link: CVE-2018-12369

cve-icon Redhat

Severity : Moderate

Publid Date: 2018-06-26T00:00:00Z

Links: CVE-2018-12369 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses